Hysteretic bit/rock interaction model to analyze the torsional dynamics of a drill string

被引：28

作者：

Real, F. F. ^{[1
,3
,4
]}

Batou, A. ^{[2
]}

Ritto, T. G. ^{[4
]}

Desceliers, C. ^{[3
]}

Aguiar, R. R. ^{[5
]}

机构：

[1] Natl Inst Metrol Qual & Technol INMETRO, Rua Santa Alexandrina 416, BR-20261232 Rio De Janeiro, RJ, Brazil

[2] Univ Liverpool, Sch Engn, Dept Mech Mat & Aerosp Engn, Liverpool L69 7ZF, Merseyside, England

[3] Univ Paris Est, MSME UMR CNRS 8208, Lab Modelisat & Simulat Multi Echelle, 5 Bd Descartes, F-77454 Marne La Vallee, France

[4] Univ Fed Rio de Janeiro, Dept Mech Engn, BR-21945970 Rio De Janeiro, RJ, Brazil

[5] Brazil Res & Geoengn Ctr, Schlumberger Oilfield Serv, Rio De Janeiro, Brazil

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2018年 / 111卷

关键词：

Drill string nonlinear dynamics; Bit/rock interaction model; Torsional vibrations; Stick-slip oscillations; Stability map; Hysteresis; STICK-SLIP OSCILLATIONS; VIBRATIONS; SYSTEMS; FRICTION;

D O I：

10.1016/j.ymssp.2018.04.014

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present paper proposes a novel hysteretic (non-reversible) bit/rock interaction model for the torsional dynamics of a drill string. Non-reversible means that the torque-on-bit depends not only on the bit speed, but also on the bit acceleration, producing a type of hysteretic cycle. The continuous drill string system is discretized by means of the finite element method and a reduced-order model is constructed using the normal modes of the associated conservative system. The parameters of the proposed hysteretic bit/rock interaction model is fitted with field data. The non-linear torsional vibration and the stability map of the drill string system are analyzed employing the proposed bit/rock interaction model and also a commonly used reversible model (without hysteresis). It turns out that the hysteretic model affects the stability region of the system. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：222 / 233

页数：12

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